This story is of Shino Asaba (Sinon) and Kazuto Kirigaya (Kirito). It takes place a year after after Yukki's death, while kazuto is struggling with events that readers will quickly see. In the mix of all this Shino starts to want Kazuto to be with her, despite her innocence about it. Plus there's also the fact that she doesn't know if he'll say "yes", to the point where she wonders if she should even bother.